1. A note that alternates rapidly with another note a semitone above it
   "The soprano's trill at the end of the aria was flawless";
   - shake
    
2. The articulation of a consonant (especially the consonant ‘r’) with a rapid flutter of the tongue against the palate or uvula
   "he pronounced his R's with a distinct trill"

1. Pronounce with a trill, of the phoneme /r/
   "Some speakers trill their r's"
    
2. Sing or play with trills, alternating with the half note above or below
   "The flautist trilled the high notes effortlessly";
   - warble, quaver

Derived forms: trilling, trilled, trills

Type of: articulate, articulation, enounce [archaic], enunciate, musical note, note, pronounce, say, sing, sound out, tone

Encyclopedia: Trill